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Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region

Local Weather Forecast | Regional Temperature Forecast in HK
9-day Weather Forecast | UV Index Forecast
Weather Information for South China Coastal Waters

Bulletin issued at 04:02 HKT 21/Feb/2018

At 4 a.m. at the Hong Kong Observatory the air temperature was 19 degrees Celsius and the relative humidity 82 per cent.

The air temperatures at other places were:

King's Park 18 degrees;
Wong Chuk Hang 19 degrees;
Ta Kwu Ling 18 degrees;
Lau Fau Shan 18 degrees;
Tai Po 18 degrees;
Sha Tin 19 degrees;
Tuen Mun 19 degrees;
Tseung Kwan O 18 degrees;
Sai Kung 18 degrees;
Cheung Chau 18 degrees;
Chek Lap Kok 20 degrees;
Tsing Yi 20 degrees;
Shek Kong 19 degrees;
Tsuen Wan Ho Koon 19 degrees;
Tsuen Wan Shing Mun Valley 19 degrees;
Hong Kong Park 19 degrees;
Shau Kei Wan 17 degrees;
Kowloon City 19 degrees;
Happy Valley 19 degrees;
Wong Tai Sin 19 degrees;
Stanley 18 degrees;
Kwun Tong 18 degrees;
Sham Shui Po 19 degrees;
Kai Tak Runway Park 19 degrees;
Yuen Long Park 19 degrees;
Tai Mei Tuk 18 degrees.


Note: The data above is provisional. Only limited data validation has been carried out.


Climatological Information for 21 Feb


Local Weather Forecast
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Local Weather Forecast

Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region

Current Weather | Regional Temperature Forecast in HK |  9-day Weather Forecast
UV Index Forecast |  Weather Information for South China Coastal Waters

Bulletin updated at 03:45 HKT 21/Feb/2018

Here is the latest weather bulletin issued by the Hong Kong Observatory.

A humid easterly airstream is affecting the coastal areas of Guangdong.

Weather forecast for today

Mainly cloudy with one or two light rain patches. Fog patches in the morning. It will be slightly cooler. Temperatures will range between 18 and 21 degrees. Moderate easterly winds, freshening later.

Outlook : A few rain patches on Thursday. Temperatures falling appreciably later. Rather cool on Friday morning.


(The above forecast period is valid up to 23:59 HKT today, 21/02/2018; Regular update at : around 45 minutes past each hour, 16:15 HKT and 23:15 HKT)



MARINE FORECAST
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Marine Forecast

Weather Information for the Marine Community

Bulletin issued at 21:00 HKT 20/Feb/2018

N0 WARNING.

GENERAL SITUATION AT 202100 UTC:
AN EASTERLY AIRSTREAM IS AFFECTING THE FORECAST AREAS. TROUGH 24N 105E 25N 115E 27N 119E QSTNR.

MARINE FORECAST FOR 24 HOURS FROM 201300 UTC:

HONG KONG= E 4-5. DOWN TO 500 M IN FOG OR LGT RAIN PATCHES. SEA UP TO 2 M. TEMP 18-21 C. =
KWANGTUNG= E TO NE 4-5, OCNL 6. DOWN TO 500 M IN FOG OR RAIN PATCHES. SEA UP TO 3 M. =
TAIWAN STRAIT= NE 5-6, UP TO 7 LATER. DOWN TO 4000 M IN MIST OR RAIN PATCHES. SEA 2-3 M, UP TO 4 M LATER. =
BASHI= E 5-6, NE UP TO 7 LATER. RAIN PATCHES. SEA 2-3 M, UP TO 4 M LATER. =
PRATAS= E 5-6. DOWN TO 500 M IN FOG OR RAIN PATCHES IN N. SEA 2-3 M. =
BALINTANG= E 5-6, NE UP TO 7 LATER. RAIN PATCHES. SEA 2-3 M, UP TO 4 M LATER. =
SCARBOROUGH= NE 4-5. FINE. SEA UP TO 2 M. =
PARACEL= E 4-5. DOWN TO 500 M IN FOG OR RAIN PATCHES IN N. SEA UP TO 2 M. =
TONKIN= E TO SE 4. DOWN TO 500 M IN FOG OR RAIN PATCHES. =
DANANG= E TO SE 4, OCNL 5. DOWN TO 500 M IN FOG OR RAIN PATCHES IN N. SEA UP TO 2 M. =
NNNN
Abbreviations:
KT, VRB, SLW, FRQ - knot, variable, slow, frequent STNR, QSTNR, C - stationary, quasi-stationary, degrees celsius WKN, INTSF, INTST, NC - weaken, intensify, intensity, no change LGT, ISOL, SCT, OCNL - light, isolated, scattered, occasional CLD, DZ, TS - cloudy, drizzle, thunderstorm

The date and time are specified by a 6-digit number DDHHMM. DD stands for the day of month, HH represents the hour while MM indicates the minute in UTC.



SOUTH CHINA COASTAL WATERS
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South China Coastal Waters

Current Weather | Local Weather Forecast | Regional Temperature Forecast in HK
9-day Weather Forecast | UV Index Forecast | Weather Information for Fishermen

Bulletin issued at 03:30 HKT 21/Feb/2018

Weather information for south China coastal waters issued by the Hong Kong Observatory at 3:30 a.m. on 21 February 2018

Warnings:
Strong winds in Nan'ao and Shanwei. Fog in all areas.

Weather Situation:
A humid easterly airstream is affecting the south China coastal waters.

Area forecasts for the next 24 hours

Hong Kong Adjacent Waters:
East force 4 to 5.
A few fog and light rain patches.
Moderate seas.

Nan'ao and Shanwei:
East to northeast force 4 to 5, occasionally force 6.
Fog patches.
Moderate to rough seas.

South of Hong Kong:
East force 4 to 5.
Fog patches.
Moderate seas.

Shangchuan Dao:
East force 4, occasionally force 5.
Fog patches.
Moderate seas.

Outlook for the next 48 hours
Easterly winds of force 5 to 6, becoming northeasterly winds up to force 7 later. Fog patches at first.

Latest reports from south China coastal weather stations
--------------------------------------------------------

Waglan Island Wind north-northeast force 3
  Visibility 8 Kilometres

Shantou Wind east-northeast force 1
  Visibility 14 Kilometres

Dongsha Wind east-northeast force 3
  Visibility 10 Kilometres

Huangmaozhou Wind east-northeast force 4

Macau Wind south-southeast force 2
  Visibility 4100 Metres in mist

Xisha Wind calm
  Visibility 28 Kilometres


WEATHER FORECAST FOR LOCAL AVIATION
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Weather Forecast for Local Aviation

Bulletin issued at 01:30 HKT 21/FEB/2018
(Next update at 9:00-9:30 HKT 21/FEB/2018)
I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     FOG.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AN EASTERLY AIRSTREAM IS AFFECTING THE SOUTH CHINA COASTAL AREAS.
     
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  090/10
       OFFSHORE:  080/15-20                            19-23
   B.   2000 FT:  140/10                               17
   C.   5000 FT:  300/10                               13
   D.  10000 FT:  260/20                               8
   E.  18000 FT:  260/40                               MS5
   F.  24000 FT:  260/50                               MS19
   G.  30000 FT:  260/70                               MS31
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY CLOUDY WITH ONE OR TWO LIGHT RAIN
      PATCHES. LOCALIZED FOG/MIST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT  SCT 3500 FT.
   K. VISIBILITY    : 7 KM. TEMPO 2000 M IN MIST. TEMPO 500 M IN FOG.
   L. 0 DEG. C LEVEL: 16000 FT      10 DEG. C LEVEL(S) : 8800 FT
   M. TURBULENCE    : MOD OFFSHORE
   N. SEA STATE     : 1.5-2.5 M     SEA TEMPERATURE    : 17 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH EASTERLY WINDS.  MAINLY CLOUDY
     WITH ONE OR TWO LIGHT RAIN PATCHES. LOCALIZED
     MIST/HAZE.=
===================================================================
Note: The forecast could be updated before the next issue time 
whenever there is newly expected occurrence or non-occurrence 
of significant weather as described below which may be hazardous 
to aircraft within 100-km radius of Hong Kong:

(a) Change of the tropical cyclone category
(b) Strong, Gale, Storm, and Hurricane force winds
(c) Thunderstorm/CBs
(d) Severe gusts
(e) Severe turbulence
(f) Significant low stratus
(g) Fog or thick haze/sandstorm/duststorm 
    causing significant reduction of visibility
(h) Volcanic ash
(i) Radioactive cloud
===================================================================
Aviation Weather Observation and Forecast Information for Hong Kong International Airport
To know more about clouds, please see Commonly observed clouds in Hong Kong.


sigmet
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Significant Weather Information (SIGMET)

The Airport Meteorological Office is responsible for monitoring hazardous weather and phenomena in the atmosphere that may affect the safety of aircraft operations within a designated airspace over the northern part of the South China Sea. Weather forecasters at the Airport Meteorological Office issues SIGMET information when hazardous weather and phenomena in the atmosphere such as thunderstorms, tropical cyclones, turbulence, icing occur or are expected to occur in the airspace.

The latest significant weather information
issued by the Hong Kong Observatory at 10:30 HKT on 10 Feb 18

VHHK SIGMET 1 VALID 100230/100630 VHHH- VHHK HONG KONG FIR SEV TURB OBS WI N2000 E11636 - N1742 E11448 - N2000 E11448 - N2000 E11636 FL300/400 MOV E 05KT NC=

Please click here for more about the SIGMET


Tropical Cyclone Warning
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Tropical Cyclone Warning

There is no tropical cyclone warning signal.

For other tropical cyclone related information, please visit the World Meteorological Organization Web Site - Severe Weather Information Centre.


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Last revision date: <16 Feb 2018> 

TROPICAL CYCLONE WARNING FOR SHIPPING
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Tropical Cyclone Warning for Shipping

There is no tropical cyclone warning for shipping*.




*Tropical cyclone warnings for shipping are issued by the Hong Kong Observatory for tropical cyclones located within the area bounded by 105E and 125E , 10N and 30N.




For other tropical cyclone related information, please visit the World Meteorological Organization Web Site - Severe Weather Information Centre.


YESTERDAY'S WEATHER AND RADIATION LEVEL Skip to main content
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Yesterday's Weather and Radiation Level

Bulletin issued at 00:15 HKT 21/Feb/2018
HKO Readings & Radiation Level

Yesterday's Weather and Radiation Level:
------------------------------------------------------

Hong Kong Observatory
Maximum Air Temperature                     25.0 C
Minimum Air Temperature                     18.8 C
Grass Minimum Temperature                   18.0 C
Relative Humidity                        75 - 92 Percent
Rainfall                                      Trace 
Total rainfall since 1st January            62.2 mm
Against an average of                       64.3 mm

Other Stations                Min                  Max
King's Park                  18.2 C               26.3 C
Wong Chuk Hang               18.1 C               24.5 C
Ta Kwu Ling                  17.1 C               27.7 C
Lau Fau Shan                 18.4 C               23.2 C
Tai Po                       17.9 C               24.4 C
Tuen Mun                     19.5 C               26.5 C
Tseung Kwan O                17.4 C               24.8 C
Sai Kung                     17.7 C               22.7 C
Cheung Chau                  18.4 C               23.1 C
Chek Lap Kok                 19.3 C               25.4 C
Tsing Yi                     19.0 C               25.3 C
Shek Kong                    18.3 C               27.1 C
Tsuen Wan Ho Koon            18.3 C               24.8 C
Tsuen Wan Shing Mun Valley   18.3 C               26.6 C
Hong Kong Park               18.7 C               24.2 C
Shau Kei Wan                 17.1 C               24.2 C
Kowloon City                 18.6 C               25.9 C
Happy Valley                 18.4 C               26.0 C
Wong Tai Sin                 19.1 C               26.5 C
Stanley                      17.5 C               22.3 C
Kwun Tong                    18.1 C               25.6 C
Sham Shui Po                 19.6 C               25.1 C
Kai Tak Runway Park          17.8 C               21.4 C
Yuen Long Park               19.0 C               26.8 C
Tai Mei Tuk               17.9 C               26.7 C

Duration of sunshine (King's Park):              1.5 H
The mean UV index recorded at King's Park yesterday was 2,
the UV intensity was Low.
The maximum UV index for yesterday was 6.
Sea surface temperature (Waglan Island):        17.1 C 

Yesterday's (20 Feb 2018) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.08 to
0.15 microsievert per hour.  These are within the normal
range of fluctuation of the background radiation level in
Hong Kong (see Note). The average dose rates measured at the
radiation monitoring stations over various parts of the
territory were as follows :

Station                     Yesterday's average
                            (microsievert/hour)
Ping Chau                           0.08
Tap Mun                             0.09
Kat O                               0.11
Yuen Ng Fan                         0.12
Tai Mei Tuk                         0.12
Sha Tau Kok                         0.10
Kwun Tong                           0.12
Sai Wan Ho                          0.09
King's Park                         0.15
Tsim Bei Tsui                       0.13
Cape D'Aguilar                      0.13
Chek Lap Kok                        0.15

Note
  1. From readings taken at various locations in Hong Kong in the past, the hourly mean ambient gamma radiation dose rate may vary between 0.06 and 0.3 microsievert per hour. (1 microsievert = 0.000001 sievert = 0.001 millisievert)
  2. Temporal variations are generally caused by changes in meteorological conditions such as rainfall, wind and barometric pressure.
  3. Spatial variations are generally caused by differences in the radioactive content of local rock and soil.
  4. The data displayed is provisional. Only limited data validation has been carried out.
Climatological Information for 20 Feb
Last revision date: <21 Feb 2018> 

From Weather Underground